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1442401 = 12012
BaseRepresentation
bin101100000001001100001
32201021121021
411200021201
5332124101
650525441
715155152
oct5401141
92637537
101442401
118a5774
12596881
133b66bc
14297929
151d75a1
hex160261

1442401 has 3 divisors (see below), whose sum is σ = 1443603. Its totient is φ = 1441200.

The previous prime is 1442393. The next prime is 1442411. The reversal of 1442401 is 1042441.

Multipling 1442401 by its sum of digits (16), we get a square (23078416 = 48042).

Adding to 1442401 its reverse (1042441), we get a palindrome (2484842).

Multipling 1442401 by its reverse (1042441), we get a square (1503617940841 = 12262212).

It can be divided in two parts, 144 and 2401, that multiplied together give a square (345744 = 5882).

The square root of 1442401 is 1201.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1042441 = 10212.

It can be written as a sum of positive squares in only one way, i.e., 2401 + 1440000 = 49^2 + 1200^2 .

It is not a de Polignac number, because 1442401 - 23 = 1442393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 601 + ... + 1801.

It is an arithmetic number, because the mean of its divisors is an integer number (481201).

21442401 is an apocalyptic number.

1442401 is the 1201-st square number.

1442401 is the 601-st centered octagonal number.

It is an amenable number.

1442401 is a deficient number, since it is larger than the sum of its proper divisors (1202).

1442401 is an frugal number, since it uses more digits than its factorization.

1442401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402 (or 1201 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The cubic root of 1442401 is about 112.9870504909.

The spelling of 1442401 in words is "one million, four hundred forty-two thousand, four hundred one".

Divisors: 1 1201 1442401